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Enriched Air and Trimix Gas Blending

The DSAT Gas Blender course provides hands-on training in blending enriched air nitrox and/or helium-blend gases using one or more blending methods. The course is divided into Knowledge Development and Practical Application Lab sections. This course is not designed to replace blending equipment specific training required by manufacturers of gas blending equipment.

The DSAT Gas Blender course can result in one of two certifications: DSAT Gas Blender or DSAT Trimix Blender.

What the Course Covers

The Gas Blender course will train you blend appropriate gas mixes for divers using enriched air nitrox or trimix appropriate for the diver's certification.

You will learn the physical properties of oxygen, its associated hazards, handling requirements and what cleaning equipment is necessary. Finally, you will learn the five methods of obtaining the desired enriched air nitrox mix and the various methods used to obtain proper helium mixes.

During the three practical application labs for this course, you will learn oxygen cleaning, blending calculations and blending methods. You will blend or assist in blending at least five times to an accuracy of an analyzed oxygen content within on percent of the desired blend.

Class Schedule

Our class schedule generally includes:

  • Four knowledge development sessions and corresponding practical application labs covering oxygen, oxygen cleaning, oxygen compatible air and gas blending methods.
  • One additional session covering blending helium mixes for trimix blenders (optional/additional fee required).


Prerequisites for taking the DSAT Gas Blender course include:

What's Included in the Course Fee

Our course fee includes the following:

  • DSAT Gas Blender Manual
  • Four knowledge development sessions conducted under the direction of an experienced DSAT Gas Blending instructor
  • DSAT Gas Blender certification fee
  • Use of cleaning and blending equipment appropriate for the course

Note: Trimix blending is available for an additional fee depending on availability of helium. This fee varies depending on the current market price of helium.


Dates for upcoming classes are provided below. If these dates do not work, select the 01 JAN class. Someone from our staff will call you to arrange another date. Customized schedules can be arranged for an additional fee. 

  Start Date Course Type End Date Max. Places Places Available   Price    
01 Jan 2022 Tec Gas Blender 01 Jan 2022 8 8 US$ 122.93

Wed 01 Jan 2020
12:00 AM
Wed 01 Jan 2020
12:00 AM
Oxygen Cleaning
Wed 01 Jan 2020
12:00 AM
Oxygen Compatible Air
Thu 02 Jan 2020
12:00 AM
Gas Blending Methods
Thu 02 Jan 2020
12:00 AM
Enriched Air Lab
Fri 03 Jan 2020
12:00 AM
Blending Helium Mixer
Fri 03 Jan 2020
12:00 AM
Final Exam
Sat 04 Jan 2020
12:00 AM

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